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HTTP/2 301
via: 1.1 google, 1.1 varnish, 1.1 varnish
cache-control: max-age=43200
referrer-policy: strict-origin-when-cross-origin
cross-origin-opener-policy: same-origin
x-backend-server: bedrock-5bfdbb6f5f-vx6gh.gcp-us-west1
expires: Wed, 08 Oct 2025 08:15:05 GMT
server: granian
x-content-type-options: nosniff
content-type: text/html; charset=utf-8
location: https://www.firefox.com/firefox/17.0.9/releasenotes/?redirect_source=mozilla-org
strict-transport-security: max-age=31536000
accept-ranges: bytes
age: 0
date: Tue, 07 Oct 2025 20:15:05 GMT
x-served-by: cache-bom-vanm7210080-BOM, cache-bom-vanm7210031-BOM
x-cache: MISS, MISS
x-cache-hits: 0, 0
x-timer: S1759868106.549697,VS0,VE263
content-length: 0
HTTP/2 301
content-type: text/html; charset=utf-8
x-content-type-options: nosniff
cache-control: max-age=43200
via: 1.1 google, 1.1 varnish, 1.1 varnish
server: granian
cross-origin-opener-policy: same-origin
expires: Wed, 08 Oct 2025 08:15:06 GMT
strict-transport-security: max-age=31536000
x-backend-server: springfield-cf86878db-x5frc.gcp-us-west1
location: https://website-archive.mozilla.org/www.mozilla.org/firefox_releasenotes/en-US/firefox/17.0.9/releasenotes/?redirect_source=mozilla-org
referrer-policy: strict-origin-when-cross-origin
accept-ranges: bytes
age: 0
date: Tue, 07 Oct 2025 20:15:06 GMT
x-served-by: cache-bom-vanm7210041-BOM, cache-bom-vanm7210036-BOM
x-cache: MISS, MISS
x-cache-hits: 0, 0
x-timer: S1759868106.869590,VS0,VE269
vary: origin
content-length: 0
HTTP/1.1 301 Moved Permanently
Content-Type: text/plain; charset=utf-8
Date: Tue, 07 Oct 2025 20:15:06 GMT
Location: https://website-archive.mozilla.org/www.mozilla.org/firefox_releasenotes/en-US/firefox/17.0.9/releasenotes/?redirect_source=mozilla-org
Server: Netlify
X-Nf-Request-Id: 01K7050DFH2TMV4674PBK3X79F
Content-Length: 150
HTTP/2 301
cache-status: "Netlify Edge"; fwd=miss
content-type: text/html
date: Tue, 07 Oct 2025 20:15:06 GMT
location: /www.mozilla.org/firefox_releasenotes/en-us/firefox/17.0.9/releasenotes/?redirect_source=mozilla-org
server: Netlify
strict-transport-security: max-age=31536000
x-nf-request-id: 01K7050DHBJJ0AMNDPQDQYW269
content-length: 98
HTTP/2 200
accept-ranges: bytes
age: 0
cache-control: public,max-age=0,must-revalidate
cache-status: "Netlify Edge"; fwd=miss
content-encoding: gzip
content-type: text/html; charset=UTF-8
date: Tue, 07 Oct 2025 20:15:06 GMT
etag: "03fbe80358f590e6a2d37a295660d8b7-ssl-df"
server: Netlify
strict-transport-security: max-age=31536000
vary: Accept-Encoding
x-nf-request-id: 01K7050DWX1N1Z8WV6XT6PBK21
Firefox ESR 17.0.9 Notes - Desktop
You are viewing information archived from Mozilla.org on 2014-08-21.
Notes (First offered to Firefox ESR users on September 17, 2013)
Check out "Whats New" for this version of Firefox ESR below. As always, youre encouraged to tell us what you think, or file a bug in Bugzilla.
If interested, please see the complete list of changes in this release.What’s New
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